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PSD to PNG conversion does not match

When converting a PSD file with a transparent background using GraphicsMagick, my PNG image is dim / lighter than the original image.

I have used the following

gm mogrify-level (with countless options)
gm mogrify -modulate (with countless options)
gm mogrify -gamma (with countless options)
gm mogrify -normalize
gm mogrify -colorspace srgb

What other options do I have to get the original PSD and the rendered PNG to match? Color is very important as they relate to a product that customers can purchase. If the color doesn't match, they might order it, not what they receive.

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All,

I was able to successfully get the image up to hidden before 1: 1 match. I needed to download an ICC profile from Adobe.

It's available here:
http://www.adobe.com/digitalimag/adobergb.html



I issued the following GraphicsMagick command:
gm convert -profile /path/to/AdobeRGB1998.icc -compress Zip /path/for/file.psd /path/for/converted/file.tif

Thanks everyone.

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@Jesse are you using mogrify because you don't have Photoshop with you? If you have a PSD, the recommended method would be to use photos built-in "save online" or "save as PNG" option to create the PNG. You can try using GIMP if you want.



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